Fan



FIG. 1 is a first perspective view of a fan showing our new design;

FIG. 2 is a second perspective view thereof;

FIG. 3 is a third perspective view thereof, wherein a hook of the fan is in an open state;

FIG. 4 is a front view of FIG. 1;

FIG. 5 is a rear view of FIG. 1;

FIG. 6 is a left side view of FIG. 1, the right side view being a minor image thereof;

FIG. 7 is a top view of FIG. 1; and,

FIG. 8 is a bottom view of FIG. 1.

The broken lines depict portions of the fan that form no part of the claimed design. 

CLAIM The ornamental design for a fan, as shown and described. 